/* ============================================
   PRIVATE LINK PAGES - Professional Theme v2.0
   ============================================ */

/* ---------- Google Fonts & Font Awesome ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');

/* ---------- CSS Variables ---------- */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --primary-bg: #EEF2FF;
    --secondary: #0EA5E9;
    --success: #10B981;
    --success-bg: #D1FAE5;
    --warning: #F59E0B;
    --warning-bg: #FEF3C7;
    --danger: #EF4444;
    --danger-bg: #FEE2E2;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 50%, #C7D2FE 100%);
    color: var(--gray-800);
    line-height: 1.6;
}

/* ---------- Layout ---------- */
.page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

/* ---------- Cards ---------- */
.card {
    width: 100%;
    max-width: 900px;
    padding: 40px 36px 44px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.15);
    border: 1px solid rgba(255,255,255,0.3);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--gray-100);
    flex-wrap: wrap;
    gap: 12px;
}

.card-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-title i {
    color: var(--primary);
    font-size: 26px;
}

.card-subtitle {
    display: block;
    font-size: 14px;
    font-weight: 400;
    color: var(--gray-500);
    margin-top: 4px;
}

/* ---------- Navigation ---------- */
.nav-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.nav-links a:hover {
    background: var(--primary-bg);
    color: var(--primary);
    border-color: var(--primary-light);
}

.nav-links a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.nav-links a i {
    font-size: 14px;
}

/* ---------- Stats Grid ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 16px;
    margin: 20px 0 28px;
}

.stat-card {
    background: var(--gray-50);
    padding: 20px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.stat-card .stat-icon {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 6px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 4px;
}

/* ---------- Form Elements ---------- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--gray-50);
    color: var(--gray-800);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-control:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

.input-group {
    display: flex;
    gap: 0;
    align-items: stretch;
}

.input-group .form-control {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    flex: 1;
}

.input-group .btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 0;
    min-width: 60px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    padding: 13px 28px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    min-width: 100px;
}

.btn i {
    font-size: 16px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
}

.btn-success {
    background: var(--success);
    color: #fff;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: #DC2626;
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--warning);
    color: #fff;
}

.btn-warning:hover {
    background: #D97706;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--gray-600);
    border: 2px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-sm {
    padding: 7px 14px;
    font-size: 13px;
    min-width: 50px;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 12px;
    min-width: 30px;
    border-radius: var(--radius-sm);
}

.btn-center {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.btn-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

/* ---------- Table ---------- */
.table-container {
    overflow-x: auto;
    margin: 24px 0 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    background: #fff;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}

table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-600);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

table tbody tr:hover {
    background: var(--gray-50);
}

table tbody tr:last-child td {
    border-bottom: 0;
}

.table-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* ---------- Status Messages ---------- */
.status {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin: 12px 0;
    font-size: 14px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.status-success {
    background: var(--success-bg);
    color: #065F46;
}

.status-error {
    background: var(--danger-bg);
    color: #991B1B;
}

.status-warning {
    background: var(--warning-bg);
    color: #92400E;
}

.status-info {
    background: #DBEAFE;
    color: #1E40AF;
}

/* ---------- Search Bar ---------- */
.search-box {
    display: flex;
    gap: 10px;
    margin: 16px 0;
}

.search-box .form-control {
    flex: 1;
}

/* ---------- Copy Page Specific ---------- */
.copy-message {
    text-align: center;
    font-size: 17px;
    color: var(--gray-700);
    margin-bottom: 24px;
    line-height: 1.7;
}

.copy-message .highlight {
    color: var(--primary);
    font-weight: 600;
}

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    color: var(--gray-400);
}

.empty-state i {
    font-size: 48px;
    color: var(--gray-300);
    margin-bottom: 16px;
}

.empty-state h3 {
    color: var(--gray-600);
    margin-bottom: 8px;
}

/* ---------- Toast Notifications ---------- */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    background: #fff;
    box-shadow: var(--shadow-xl);
    border-left: 4px solid var(--primary);
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 1000;
    max-width: 400px;
}

.toast.show {
    transform: translateX(0);
}

.toast i {
    margin-right: 10px;
}

.toast-success {
    border-left-color: var(--success);
}

.toast-error {
    border-left-color: var(--danger);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .page {
        padding: 16px;
    }
    
    .card {
        padding: 24px 16px 28px;
        border-radius: var(--radius-lg);
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .card-title {
        font-size: 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .stat-card .stat-value {
        font-size: 22px;
    }
    
    .btn {
        font-size: 14px;
        padding: 11px 20px;
        min-width: 80px;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .nav-links {
        width: 100%;
    }
    
    .nav-links a {
        flex: 1;
        justify-content: center;
        font-size: 13px;
        padding: 8px 12px;
    }
    
    table {
        font-size: 13px;
    }
    
    table th,
    table td {
        padding: 10px 12px;
    }
    
    .table-actions .btn {
        font-size: 12px;
        padding: 5px 10px;
        min-width: 30px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .stat-card {
        padding: 14px 12px;
    }
    
    .stat-card .stat-value {
        font-size: 20px;
    }
    
    .btn {
        font-size: 13px;
        padding: 10px 16px;
        min-width: 70px;
    }
}